Tree-trimmer.



No. 888,022. PATENTED MAY 19, 1908.

H. J. LAWRENCE.

TREE TRIMMER.

APPLIOATION FILED JULY 11. 1907.

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HENRY J. LAWRENCE, OF LONGBEAOH, CALIFORNIA.

TREE -TRIMMER.

Specification of Letters Patent.

Patented May 19, 1908.

Application filed July 11, 1907. Serial No. 383,353.

T all whom it may concern:

Be it known that I, HENRY J. LAWRENCE, citizen of the United States,residing atLongbeach, in the county of Los Angeles and State ofCalifornia, have invented certain ner to sever the same.

For a full understanding of the invention and the merits thereof andalso to acquire a knowledge of the details of construction and of themeansfor effecting the result, reference is to be had to the followingdescription and accompanying drawings, in which:

Figure 1 is a erspective view of a tree trimmerembodymg the invention,Fig. 2 is a side elevation of the same, parts being removed. Fig. 3 is atop plan view of the tree trimmer parts being broken away; and, Fig. 4is a sectional View on the line r/cx of Fig. 2.

Corresponding and like parts are referred to in the followingdescription and indicated in all the views of the drawings by the samereference characters.

The cutting or trimming mechanism proper is carried by a frame 1adjustably mounted upon a portable standard comprising an u right bar 2rovided at its lower end with t e spaced ELIK diverging legs 3. A prop 4is pivoted between the upper portion of the egs 3 and cooperates withthe latter to hold the standard in an upright position. The frame 1comprises spaced side pieces fitting against opposite sides of theupright bar 2 and pivotally connected to the same by a bolt 5 passingthrough a selected one of a series of openings 6 in the upright 2. Oneend of the frame 1 is provided with a handle 7 while a disk saw8 isjournaled between the spaced side pieces at the opposite end of theframe. 8 and receives a belt 10 engaging a drive A pulley 9 is rigidwith the disk saw.

wheel or pulley 11 journaled between the side pieces of the frameadjacent the handle 7. This drive wheel 11 is keyed upon, or

I otherwise made rigid with the shaft 12, one

end of which is provided with a crank handle 14. It will thus beapparent that by manipulating the handle 7, the frame 1 can be swungabout the pivot bolt 5 and the saw 8 brought into contact with thedesired limb, whereupon the said saw can be set in motion by turning thecrank handle 13 and the limb severed from the tree. By passing the pivotbolt or pin 5 through any one of the series of o enings 6 in the uprightbar 2, the elevation of the frame 1 can be adjusted to enable the deviceto operate under various conditions.

Having thus described the invention, what is claimed as new is:

1. In a tree trimmer, the combination of a standard having a pluralityof openings therein, a frame comprising spaced side pieces pivotallyconnected to the standard at an intermediate point by a pin passingthrough a selected one of the said 0 enings, a disk saw journaledbetween the si e pieces of the frame, and a saw operating mechanismmounted upon the frame.

2. In a tree trimmer, the combination of an upright bar, spaceddiverging legs at the lower end of the upright bar, a prop pivotedbetween the legs and cooperating therewith to hold the bar in an uprightposition, a frame comprising spaced side pieces receiving the uprightbar between thesame, the said frame being pivotally mounted at an inter-'mediate point upon the bar, a disk-saw journaled between the sidepieces of the frame at one end thereof, a pulley a plied to the disksaw, a handle projecting Iongitudinally from the opposite end of theframe, a drive wheel journaled between the side pieces of the frame atthe said opposite end thereof, and a belt for transmitting motion fromthe drive wheel to the pulley.

In testimony whereof I afIiX my signature in presence of two witnesses.

HENRY J. LAWRENCE. [L. s.]

Witnesses:

JOHN H. BROWN, EDWARD A. LAWRENCE.

